Window bracket



12, VJ, M. B QRN l wINDow BRACKET Filed July 3, 1930 Patented pr. 12, 1932 miran ST Parent orFcE JULIUS IVI. BORN, OF ST. PAUL, MINNESOTA', ASSIGNOR OF ONE-HALF TO JOHN J. BANNER,

OF ST. PAUL, MINNESOTA lwritnow BRACKET Application :nea vmy s, 1930. serial 110-4654521'.

My invention relates to window brackets in eneral and more particularly to a folding type bracket adapted to be used in pairs, one

pair to a window of so`called storm windowv ing of such window at any predetermined angle and further to hold such window rigid-` ly and noiselessly in closed position. Y n

For the purpose of brevity this article will hereinafter be designated window bracket.

The device has been illustrated in the accompanying drawings in a preferred form, one complete bracket being shownas on the left side bar of a storm sash and connected to the corresponding stationary window frame side piece or so called stile.

In the drawings,- Fig. 1 is a vertical sectional elevation of the lower part of a window-frame, the corresponding lower part of a storm window and my improved bracket holding the latter outwardly from the window fr ame.

`Fig. 2 is an edge view of Fig. 1 looking V toward the right and showing my window 3o bracket in lowered position with the storm window closed.

Fig. 3 is an enlarged sectional detail of my improved window-frame stilebracket alone, about as on line 3 3 in Fig. 1.

Fig. 4 is an approximately full size face view of my stile plate and a fractional detail of the bracket-arm which may be pivot-- ally and removably connected to said stile plate.

Fig. 5 is a longitudinal section of the bracket arm shown in Fig. 4, as on line 5 5.

Fig. 6 is an inside elevation of the stileplate of my device and the bracket arms extended upwardly above their common pivot.

Fig. 7 is a detail view of my improved knee joint construction for the bracket, dismembered.

Referring to the drawings by reference numerals, this bracket is of the so-called knee joint type, each bracket having an inner arm Cil 10, an outerlarm 11 connected at their enlarged disc-like adjacent ends by a bolt 12 passingthrough alined apertnres thereof and also through an exterior washer 13 adapted to'bear against the one side of member 11 andI` thethree kparts frictionally contacting with each other being pressed together by a suitablehelical-coil spring 14 bearing with one end adj ustably engaged by a thumb screw 15 on the bolt. The bracket is normally mounted with the said joint down and the arms 10--11 depending in parallel relation to each other from horizontally alined pivot means, one on the storm window 16 (as in Fig. l) and the other in a stile bracket 17 fixed on the window frame side member or stile 18, when the storm window isclosed.

Tit-h the stormwindow partially swung out the arms 10-11 assume a V-shape formation as in Fig. 1, the angles thereof being regulated by the distance the storm window isy opened. An object of this device is to hold the 'hinged window in any desired angular position outwardly, by friction means which are also non-rattling- The bracket arms are further Yso constructed and manipulated that the window 16 is alsol securely held in its closed position in the window frame as will presently be described. f

The outer arm 11 mayhave its upper end pivotally fixed as at 19 to a storm window bracket 20 fixed as with screws 21 to the side bar of window 16. v The inner arm is removably and pivotally connected with its upper end part to a spring actuated pivot pin 22 slidably retained in and protruding from the outwardly@ offset stile bracket 17. The brackets 20 and 17 are so mounted that their respective pivots 19 and 22 are alined horizontally when the window 16' is closed, arms 10-11 depending therefrom in parallel relation to each other (Fig. 2).

They pivot pin 22 is pressed with its head 22H ltoward the outer face of bracket 17 but said head is held in spaced relation to said face by forming the metal of the stile bracket bulged outwardly as if countersunk at 17C.l

23 is an elongated flat spring under the offset part 17A of 'bracket 17 and provided with an apertureto engage the shank of ipin 22 bulging part 17C of the stile plate 17 (see dotted position of in Fig. 3) thus engaging frictionally between the head'22H and the plate17 and moving the head outward yieldingly, the slitted part 10A straddling' i and riding over'the shank of pivot 22 until Y. the counterbored part 10C frictionally'en'-V gages the outward offset 17C, thus providing the pivot means for the upper end of arm 10. Obviously the spring 23 causes frictiony contact of head22I-I against the arm 10 and the joint thus constructed is noiseless. The upper pivot jointsv of the two arms i10--11 have now been fully described. It is obvi ous thatwhen removal of window 16 is Vde sired, armi` 10 is first disconnected from pivot 22 and the two arms 10.-11` can then be fold,r

ed and remain on the storm window.

I will now further describe the multiple disc friction type joint connecting the lower ends of the arms 10-11. .As stated these arm ends are preferably enlarged to provide round discs 10D and 11D and the washer 13 is of like size.- The disc l10D has its central or pivot boltV aperture formed preferably square as 10D (Fig. 7) to be engaged by the square short shank part 12D of bolt 12 under its head. Y The correspondingV aperturesV 11D and 13 are round for the bolt shank to rotate freely in.

vspaced fingers 10F extending transverselj7 Disc 10D is formed with two outwardly from its outer edge. n Disc 11D is assembled concentric of and between disc i 10D and washer 13, the latter being provided with a single finger 13F extending radially from its outer edge to be locked between the two fingers 10F of vdisc 10D (see Figs. 7 and 2). Thus disc 10D and washer 13 are locked together and bolt 12 is rigid with both bein@ engaged ixedly in the square aperture 10D Therefore the two outer discs rotate in unison and the center disc 11D is retained frictional` ly but movably between them.

Friction is regulated by simple adjustment of thev thumbscrew. Initial friction should be such that when the hinged window is moved outwardly the arms 10-11 move toV corresponding V-shaped position and are frictionallyV retained at any angle, holding the window 16 at any angle at which it isreleased. It may be necessary to adjust the nut 15 and compression in spring 14 at times 'but it has been found tha-tone adjustment is sufficient for a considerable length of time.

To close a storm .or screen sash 16 as from itsoutward position in Fig. 1, the operator simply rgrasps over the nut 15 and spring 14, serving as a. hand hold, and pulls inwardly, this causing the arms 10-11to bedrawn together to parallel position and vertically below their pivots 19-22 (see Fig. 2), said pivots being thereby alined and the parallel arms together acting as a single lever can be swung inwardly and upwardly, as indicated by arrows 30, Fig. 1, to a position vertically of and Yabove their pivot 19-'22, indicated in dotted lines.

11F is a short lateral flange integral of arm -11 near its pivot 19 and extending sidewise in a directionto bear against an edge of arm 10 when the two arms are alined in window closing'action. It is evident that when the arms are swung. upwardly to their dotted position F ig.1 this flange 11F is inward and bearing againstthe adjacent edgeof the other arm prevents misalignment of the common pivot 19-22 outwardly and therefore the window 16 can not be accidentally or otherwise moved outwardly until the double arm 10-11 is swung downwardly to position below the common pivot after which the *Y bracket spreads outwardly by moving the lower part of the hinged -windolw as far out as desired Y and as previously described.

My invention has now been fully disclosed in its preferred form. Modifications in proportions of the various parts, use of a larger from the scope and spirit of my invention.

I claim:

A window bracket for windows suspended pivotally from a -fiXed frame; said bracket comprising a knee joint device comprising two pivotally connectedarms, pivot means connecting the outer one of said arms to the suspended window, detachable pivot means for the other or inner arm, said latter means comprising a stile-plate adapted to be fixed on the window frame stile, the plate offset outwardly from the stile and provided in its offset part with an outwardly countersunk part bored centrally, ka stile pivot pin re,- ciprocable in said bore and having `a head outwardly of said bore, spring means with-V 1n said offset part and arranged yto engage the said pivot pin to continuously and yieldingly press said pin with its said head toward the plate, and means provided in the end part ofthe inner arm for removably and pivotally engagingsaid headed pin, said latter means consisting of a countersunk aperture in the end part of the inner arm and arranged to bear frictionally and concentrically against the said projecting and bored part of .thestile plate and between the latter part-- and said head of the pivot pin.

In testimony whereof I afiix my signature.

JULIUS M. BORN. 

